Finishing process.



H. L. HASKELL.

FINISHING PROCESS.

APPLIOATION FILED JULY 23, 1906. 935,603.

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Patented Sept. 28, 1909.

UNITED STATES PATEN HENRY L. HASKELL, 0F LUDINGTON, MICHIGAN, ASSIGNOB TO CARBOM-ABCHARENA COMPANY, OF LUDINGTQN, MICHIGAN.

FINISHING PROCESS.

Specification of Letters Patent.

Application filed July 23, 1906.

Patented Sept. 28;, i909. Serial No. 327,343.

.provide animproved process of coating or finishing with celluloid by which an article may be completely coated with an even coatmg of celluloid without anybreak or joint therein.

Further objects, and objects relating to structural details, will; definitely appear from the detailed description to follow.

In carrying out my process of finishing or coating with celluloid, I preferably employ the apparatus illustrated in the accompanying drawing, which I find very satisfactory for the purpose.

In the accompanyingdrawing, Figure 1 is a vertical section through the casing 1 taken on a line corresponding to line 1-1 of Fig. 2. Fig. 2 is a vertical section taken on a line corresponding to line 22 of Fig. 1. Fig. 3 is a plan view ofa water-closet seat which has been partially finished.

In the drawing, similar reference characters refer to like parts in the several views, and the se tion views are taken looking in the direclon of the little arrows at the ends of the section lines'.

In carrying out my. improved process, I preferably conduct the several operations in a room in which the temperature is not below degrees Fahrenheit. This room is preferably tightly closed, and one from which the moisture is'removed from the atmosphere by a suitable means, as by the useof an exhaust fan, which causes the air to circulate through a condenser. The means of accomplishing this result will be readily understood by the operator.

In carrying out the process, the celluloid is dissolved by ether or any other solvent which readily evaporates. The dissolved celluloid is made quite thick, preferably about the consistency of a thick batter or as thick as will readily flow or spread. The article to be finished is first dipped into the solvent, and then before the solvent has time to evaporate it is dipped into the dissolved celluloid.

I preferably dip only a portio of the article to be coated at a time so that he article can be readily handled Without touching the dipped or undried portion. After dipping in the dissolved celluloid, the surplus celluloid is drained or allowed to drip there from and the article is then mounted upon a slowly revolving wheel, the wheel being kept in revolution until the celluloid is set or dried. By mounting the article upon the wheel, the draining off or settling of the celluloid to one side of the article is prevented, so that an even coating is obtained. F or the purpose of drying, I preferably employ the wheel 2, which 1s arranged within the casing 1. By inclosing within the" easing the too rapid drying or evaporation of the solvent is prevented. The wheel is preferably provided with outwardly projecting clamping members or arms on itsperiphery arranged in pairs, the clamping screws 4: being arranged through one of these clamping lugs for securing the article in place, as clearly appears from the drawing. The object of carrying on this process in a dry atmosphere is on account of the great aiiinity of the solvent for water. When the drying is carried on in a moist;- atmosphere, dro s or bubbles are likely to form on the surface of the coating, forming pit-like dents therein. Too rapid evaporation of the solvent is likely to cause the same to gather in drops on the coating which also forms pits or dents therein by the solvent eating into the same. If there should be a tendency for the coating to dry unevenly, thiscan usually be overcome by brushing with the solvent or by dipping the same into the solvent when partially dry. After the coating is thoroughly dry, the other portion of the article is treated in the same manner. A perfectly smooth surfacemay be formed by smoothing up the joint, whilethe last dipped portion is drying, with a brush dipped in the solvent. After the article is entirely coated, or so much as is desired, the coating may be polished or finished by sanding and then dipped into the solvent. .The polishing may, if preferred, be done by rubbing or burnishmg. This, however, re-

quires an unnecessary amount of work as by sandmgand d1 )pmg 1n the solvent a perfectly smooth g ossy surface issecured.

The celluloid may be colored as desired,

and when colored ives the appearance of enamel.

Ifit is co orless, the grain' of the wood shows therethrough, giving the article the appearance of avarnished article. The

crack oil and is notafi'ected by water or acids such as will completely destroy varnish. The wood is entirely protected so that it is not afiected by atmospheric changes, such as cause varnished wood to shrink and swell. This renders it particularly valuable as a coating for water-closet seats, covers, tanks and the like, and the same is perfectly sanitary, as it may be washed as frequently as desired without deteriorating it. I

While I have illustrated the means preferred by me in carrying out my improved process, it isevident that other mechanisms might be employed in this relation, and I have shown this means only forthe purpose ofillustrating and makingclearthe process.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The process of finishing or coating with a pyroxylin compound, conslstihg of .dissolving the compound with ether or other readily evaporating solvent; dipping a portion of the article to be coated into the solvent and then into the dissolved compound; drying; dipping and drying another portion of the article to be coated and forming a perfect joint between the dry portion and the last dipped portion by applying the solvent thereto; and polishing by sanding and dipping into the solvent,-as specified.

2. The process of finishingor coating with a1 pyroxylin compound, consisting of'dissolving the compound with ether or other readily evaporating solvent; dipping a portion of the article to be coated into the solvent and then into the-dissolved compound; drying; dipping and drying another portion of the article to be coated, and forming a perfect joint'bet'ween the dry portion and 'the last dipped portion by applying the solvent thereto,'as specified.

' 3. The process of finishing or coating with a pyroxylin compound, consisting of dissolving the compound with ether or other readily evaporating solvent; dipping the article to.

be coated into the solvent and then into the dissolved compound; drying; and polishing by" sanding and dipping in the solvent, as specified. y l

4. The process of finishing or coating with apwroxylin compound, consistingof dissolving the compound with ether or other readily evaporating solvent; dipping the articles to be coated into the solvent and then into the dissolved compound; drying, as specified.

5. The process of finishin or coatin with a pyroxylm compound, conslsting of dissolving the compound with an evaporating solvent; dipping the article to be coated into the dissolved compound; drying on a revoluble support; and dipping the completely coated 5 article into the solvent, as specified.

6. The process'of finishing or coating with a pyroxylin compound, consisting of dissolving the compound with an evaporating solvent; dipping the article to be coated into the dissolved compound; and dipping the completely coated article into the solvent, as specified.

7. The process of finishing or coating with a pyrox-ylin compound, consisting of dissolving the compound with a readily evaporating solvent; coating the article to be finished with the dissolved compound; and dryin on a support by which the article is revolve about a horizontal axis in a dry atmosphere, as specified. Y 8. The process of finishing or coating with a pyroxyl'in compound, consisting of dissolving the compound with a readily evaporating solvent; coating the article to be finished with the dissolved compound; and drying on a support by which the article is revolved about a horizontal axis, as specified.

9. The process of finishing or coatin with a pyroxylin compound, consisting of dissolving the compound with an evaporating solv ent; coating the article to befinished therewith; sanding; dipping in the solvent; and

. drying in a dry atmosphere, for the purpose specified. v

10. The process of finishing orcoating with a pyroxylin compound, consisting of dissolving the compound with an evaporat ing solvent; coating the article to be finished therewith; sanding; and dipping in the solvent, for the purpose specified.

11. The process of finishing or coating with a pyroxylin compound, consisting of dissolving the compound with an evaporating solvent; coating the article to be finishedtherewith; and washing the coated-[article when partially dry with the solvent, as specified.

In witness whereof, I have hereunto set -my hand and seal in the presence of two wit nesses. V

HENRY L. HASKELL. Witnesses:

W. L. HAMMOND, A. D. WooowARn. 

